Self-service arm circumference measuring ruler

Abstract

The invention discloses a self-service arm circumference measuring ruler which comprises a measuring ruler main board. A scale is arranged in the middle of the measuring ruler main board; a mobile baffle is arranged to be perpendicular to the measuring ruler main board and is in sliding connection with the measuring ruler main board; a vertical baffle is vertically arranged at the end of the zeroscale line of the measuring ruler main board, and the vertical baffle and the mobile baffle are arranged on the upper side and the lower side of the measuring ruler main board respectively; a divisionbar is arranged along the middle area of the measuring ruler, and a gap is left between the division bar and the measuring ruler main board; each flexible ruler comprises a ruler box and a measuringtape, wherein the ruler box is internally provided with a wind spring and provided with an opening allowing the tape ruler to stretch out and draw back, the wind spring provides spring force to make the measuring tape automatically roll up, the measuring tape penetrates through the gap between the division bar and the measuring ruler main board, part of the circumference of the ruler box is arranged to be the cambered surface, and one end of the cambered surface is connected with with the opening. By means of the measuring ruler, it can be guaranteed that the same measuring part is measured multiple times, and the measurement accuracy is ensured.

Description

technical field [0001] The invention relates to a measuring ruler, in particular to a self-service arm circumference measuring ruler. Background technique [0002] Lymphedema is one of the common complications after breast cancer surgery. It will not only cause swelling, pain, tightness, shoulder joint dysfunction, and appearance changes of the affected limbs, but also have a negative impact on the patient's psychology and work life, reducing the Quality of life in breast cancer patients. Accurate measurement tools, effective assessment methods, and self-monitoring are necessary means to prevent lymphedema. [0003] At present, there are four measurement methods for lymphedema: arm circumference measurement, water replacement, blood loss meter, and bioelectrical impedance spectroscopy (BIS). [0004] The arm circumference measurement method is to use a tape measure to measure the circumference of different points of the upper arm, and to understand the occurrence and devel...

AI Technical Summary

Problems solved by technology

[0005] However, when the arm circumference measurement method is applied clinically, the deviation of the measurement data will occur because the patient's body position is not fixed when measuring, the measurement points selected by different personnel are not uniform, or each person's operation method is inconsistent when using a soft ruler, etc.

At present, there is a lack of unified measuring instruments and standards in clinical practice, and it is difficult to unify the measured values, which cannot provide a reliable basis for the treatment of patients.

[0006] Self-monitoring of lymphedema patients with breast cancer is also very important, and currently there is no portable, easy-to-use and accurate measurement tool for patients to use at home

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